Dr. Barry T. Smith Profile

Dr. Barry T. Smith

Physicist at US Dept of Homeland Security

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Author

Publications (17)

Proceedings Article | 30 April 2020 Presentation + Paper

Simulant development for liquid explosive materials using millimeter wavelength characterization and ensemble averaging

Duane Karns, James Weatherall, Zachary Landicini, Peter Smith, Jeffrey Barber, Barry Smith

Proceedings Volume 11411, 1141109 (2020) https://doi.org/10.1117/12.2560190

KEYWORDS: Explosives, Liquids, Imaging systems, Dielectrics, Error analysis, Data modeling, Reflection, Skin, Millimeter wave imaging, Systems modeling

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Proceedings Article | 23 April 2020 Presentation + Paper

Detecting dielectric properties of objects imaged on persons in millimeter-wave AIT systems

James Weatherall, Kevin Yam, Peter Smith, Elia Lichtenstein, Barry Smith, Jeffrey Barber, Duane Karns

Proceedings Volume 11411, 1141108 (2020) https://doi.org/10.1117/12.2560288

KEYWORDS: Reflection, Dielectrics, Calibration, Refractive index, Explosives, Antennas, Free space, Imaging systems, Extremely high frequency, Constructive interference

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Proceedings Article | 23 April 2020 Presentation + Paper

A protocol for simulant validation using active millimeter-wave imaging systems

Chondrea Richard, Jeffrey Barber, Jeffrey Lehman, Glenn McHugh, Keith Roller, Nicholas Bompensa, James Weatherall, Peter Smith, Duane Karns, Zachary Landicini, Anna Whitehead, John Devine, Barry Masters, Barry Smith

Proceedings Volume 11411, 114110A (2020) https://doi.org/10.1117/12.2558856

KEYWORDS: Imaging systems, Millimeter wave imaging, Statistical analysis, Reflectivity, Explosives

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Proceedings Article | 13 May 2019 Paper

Suitability of explosive simulants for millimeter-wave imaging detection systems

James Weatherall, Duane Karns, Jeffrey Barber, Barry Smith, Peter Smith

Proceedings Volume 10994, 109940G (2019) https://doi.org/10.1117/12.2521723

KEYWORDS: Dielectrics, Explosives, Reflection, Imaging systems, Millimeter wave imaging, Reflectivity, Extremely high frequency, Scattering, Absorption

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Proceedings Article | 11 May 2018 Paper

Thin film partial reflectors for generating contrast in millimeter wave images

Jeffrey Barber, Peter Smith, Lindsey Gray, Angel Yam, Joseph Greca, Kevin Yam, James Weatherall, Duane Karns, Barry Smith

Proceedings Volume 10634, 106340I (2018) https://doi.org/10.1117/12.2306335

KEYWORDS: Imaging systems, Image resolution, Reflection, Millimeter wave imaging, Thin films, Extremely high frequency, Standards development, Image quality standards

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Proceedings Article | 8 May 2018 Paper

The identification of explosives in millimeter-wave imaging systems

James Weatherall, Jeffrey Barber, Kevin Yam, Peter Smith, Joseph Greca, Barry Smith

Proceedings Volume 10634, 106340C (2018) https://doi.org/10.1117/12.2307621

KEYWORDS: Dielectrics, Reflectivity, Reflection, Imaging systems, Explosives, Millimeter wave imaging, Antennas, Calibration, Holography

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Proceedings Article | 14 June 2017 Paper

Identifying explosives using broadband millimeter-wave imaging

James Weatherall, Kevin Yam, Jeffrey Barber, Barry Smith, Peter Smith, Joseph Greca

Proceedings Volume 10189, 1018906 (2017) https://doi.org/10.1117/12.2267192

KEYWORDS: Explosives, Imaging systems, Dielectrics, Millimeter wave imaging, Extremely high frequency, Explosives detection, Detection and tracking algorithms, Weapons, Constructive interference, Opacity, Reflection, Reflectivity, Metals, Antennas, Data modeling, Fourier transforms

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Proceedings Article | 11 May 2017 Paper

Developing an ANSI standard for image quality tools for the testing of active millimeter wave imaging systems

Jeffrey Barber, Joseph Greca, Kevin Yam, James Weatherall, Peter Smith, Barry Smith

Proceedings Volume 10189, 1018905 (2017) https://doi.org/10.1117/12.2267194

KEYWORDS: Optical spheres, Metals, Standards development, Image quality standards, Extremely high frequency, Spatial resolution, Image quality, Millimeter wave imaging, Imaging systems, Prototyping, Image resolution, Electromagnetism

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Proceedings Article | 11 May 2017 Paper

Measurements of the dielectric properties of explosives and inert materials at millimeter wave frequencies (V-band and above) using free space reflection methods

Peter Smith, James Weatherall, Jeffrey Barber, Kevin Yam, Joseph Greca, Barry Smith

Proceedings Volume 10189, 1018908 (2017) https://doi.org/10.1117/12.2267195

KEYWORDS: Calibration, Reflection, Explosives, Dielectrics, Free space, Metals, Extremely high frequency, Data modeling, V band, Antennas

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Proceedings Article | 12 May 2016 Paper

A method to control the polymorphic phase for RDX-based trace standards

John Brady, Brittney Argirakis, Alexander Gordon, Richard Lareau, Barry Smith

Proceedings Volume 9824, 982418 (2016) https://doi.org/10.1117/12.2223837

KEYWORDS: Raman spectroscopy, Crystals, Explosives, Statistical analysis, Homeland security, Spectroscopy, Standards development, Aluminum, Particles, Aerosols

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Proceedings Article | 19 May 2015 Paper

Identifying explosives by dielectric properties obtained through wide-band millimeter-wave illumination

James Weatherall, Jeffrey Barber, Barry Smith

Proceedings Volume 9462, 94620F (2015) https://doi.org/10.1117/12.2177216

KEYWORDS: Dielectrics, Calibration, Electroluminescent displays, Explosives, Data modeling, Imaging systems, Metals, Reflectivity, Refractive index, Interfaces

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Proceedings Article | 19 May 2015 Paper

Toward the development of an image quality tool for active millimeter wave imaging systems

Jeffrey Barber, James Weatherall, Joseph Greca, Barry Smith

Proceedings Volume 9462, 94620D (2015) https://doi.org/10.1117/12.2177231

KEYWORDS: Skin, Liquids, Epoxies, Dielectrics, Millimeter wave imaging, Imaging systems, Image quality, Extremely high frequency, Free space, Solids

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Proceedings Article | 2 June 2011 Paper

Development of a contrast phantom for active millimeter-wave imaging systems

Jeffrey Barber, James Weatherall, Carolyn Brauer, Barry Smith

Proceedings Volume 8019, 80190G (2011) https://doi.org/10.1117/12.888866

KEYWORDS: Imaging systems, Dielectrics, Explosives, Aluminum, Liquids, Millimeter wave imaging, Extremely high frequency, Metals, Calibration, Reflectivity

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Proceedings Article | 2 June 2011 Paper

Characterization of peroxide-based explosives using Raman spectroscopy: isotopic analysis and DFT calculations of triacetone triperoxide (TATP)

Carolyn Brauer, Jeffrey Barber, James Weatherall, Barry Smith, Jill Tomlinson-Phillips, Alfred Wooten

Proceedings Volume 8019, 80190H (2011) https://doi.org/10.1117/12.888867

KEYWORDS: Raman spectroscopy, Explosives, Homeland security, Lead, Calibration, Security technologies, Transportation security, Roads, Sensors, Current controlled current source

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Proceedings Article | 2 June 2011 Paper

Measurement of the reflectivity and absorptivity of liquids, powders, and solids at millimeter wavelengths using dielectric detection by a resonator-post fixture between parallel conducting plates

James Weatherall, Jeffrey Barber, Carolyn Brauer, Barry Smith

Proceedings Volume 8019, 80190F (2011) https://doi.org/10.1117/12.888865

KEYWORDS: Dielectrics, Resonators, Liquids, Solids, Electromagnetism, Reflection, Reflectivity, Explosives, Antennas, Homeland security

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Proceedings Article | 27 April 2010 Paper

Millimeter wave measurements of explosives and simulants

Jeffrey Barber, James Weatherall, Barry Smith, Steve Duffy, Stephen Goettler, Ronald Krauss

Proceedings Volume 7670, 76700E (2010) https://doi.org/10.1117/12.848794

KEYWORDS: Explosives, Dielectrics, Reflection, Extremely high frequency, Skin, Reflectivity, Homeland security, Terahertz spectroscopy, Free space, Imaging systems

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Proceedings Article | 28 January 1999 Paper

Lamb wave tomographic imaging system for aircraft structural health assessment

Willi Schwarz, Michael Read, Matthew Kremer, Mark Hinders, Barry Smith

Proceedings Volume 3586, (1999) https://doi.org/10.1117/12.339898

KEYWORDS: Tomography, Inspection, Imaging systems, Transducers, Reconstruction algorithms, Nondestructive evaluation, Wave propagation, Ultrasonics, Wave plates, Computing systems

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Showing 5 of 17 publications

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